[OpenSER-Users] How to determine that a reply is a retransmission?

[Jon Steer]

Environment:
Openser 1.3.1-TLS
Fedora 7


I have a module that performs a heavyweight operation on Invites and
their respective Replys.
I would prefer not to do the operation again if there is a
retranmission of the Reply.

How can I determine in a REPLY-ROUTE if a reply has already been seen?

$T_reply_code would work, if on entry to the first reply route it was
zero, but I suspect it is the value of the current reply.

thanks,
jon